Quantitative Source Testing - A Comparison between an 60'000lbs Vibrator and an 80'000lbs Vibrator

The Quantitative Quality Analysis (QQA) method provides an alternative to subjective analysis of source tests by using analytical measurements on the seismic signal. This is achieved by measuring a number of wavelet attributes of the seismic signal to determine seismic quality. This provides an objective method to determine quality. The QQA method is demonstrated on a vibratory source test where a 60'0001bs M26 vibrator is compared with an 80'0001bs M30 vibrator on a prospect in Australia. The combination of these attributes show the QQA method can clearly differentiate between a 60'0001bs and 80'0001bs vibratory source in a manner which is consistent with expert subjective analysis.